WO2003050351A1 - Procede de precalandrage d'une bande de carton - Google Patents

Procede de precalandrage d'une bande de carton Download PDF

Info

Publication number
WO2003050351A1
WO2003050351A1 PCT/FI2002/000907 FI0200907W WO03050351A1 WO 2003050351 A1 WO2003050351 A1 WO 2003050351A1 FI 0200907 W FI0200907 W FI 0200907W WO 03050351 A1 WO03050351 A1 WO 03050351A1
Authority
WO
WIPO (PCT)
Prior art keywords
nip
roll
hard
long
web
Prior art date
Application number
PCT/FI2002/000907
Other languages
English (en)
Inventor
Matti Lares
Mikko Tani
Original Assignee
Metso Paper, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Metso Paper, Inc. filed Critical Metso Paper, Inc.
Priority to EP02777393A priority Critical patent/EP1454013B1/fr
Priority to DE60219200T priority patent/DE60219200T2/de
Priority to US10/497,344 priority patent/US7326319B2/en
Priority to AU2002338998A priority patent/AU2002338998A1/en
Publication of WO2003050351A1 publication Critical patent/WO2003050351A1/fr

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/006—Calenders; Smoothing apparatus with extended nips
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/0073—Accessories for calenders
    • D21G1/0093—Web conditioning devices
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G7/00—Damping devices

Definitions

  • the present invention relates to a method for pre-calendering a board web.
  • the SBS comprises a bottom layer, a filler layer, a top layer, all made of pulp, and a coating. It is prior known to upgrade surface quality without compromising structural features of the board, by subjecting the board surface to water moistening. Moreover, it has been discovered that long-nip calendering is applicable as a pre-calendering method for coated boards, but that cannot be used for the thickness profiling of a web as required by a coating process.
  • the inventive method comprises passing a board web in a pre-calendering process through at least one hard nip, which is formed by a metal roll and its counter roll, and through at least one long nip, which is formed by a thermo roll and a long-nip roll or a long-nip belt assembly, and said method comprising moistening the surface of the board web with water prior to passing the same through said at least one hard nip.
  • the inventive method comprises in combination: water moistening of a web surface, passing the web through a hard nip for its thickness profiling and then through a long-nip calender for completing pre-calendering of the web prior to coating, for the best final result with certain types of board.
  • the metal roll for a hard nip must be unheated in order to avoid heating of the web in the nip and, thus, not to lose moisture gradient.
  • Application of water to the surface of either or each roll of a hard nip for example by means of a water box or the application bar of a film transfer coater, provides a relatively advantageous solution.
  • the web has a moisture content which is preferably about 1-2% upstream of the hard nip.
  • Moistening of the web can also be effected by using, for example, a water moistening apparatus manufactured by VIB Apparatebau GmbH of Germany, which is positioned preferably in a drying section between two drying cylinders, in which case the moisture content of a web upstream of the moistening apparatus can be higher, in the order of about 5-6%, than that of the embodiment in which the water is applied to the surface of a hard-nip roll.
  • a water moistening apparatus manufactured by VIB Apparatebau GmbH of Germany, which is positioned preferably in a drying section between two drying cylinders, in which case the moisture content of a web upstream of the moistening apparatus can be higher, in the order of about 5-6%, than that of the embodiment in which the water is applied to the surface of a hard-nip roll.
  • Another way of moistening a web is steaming.
  • said VIB water moistening apparatus can also be positioned in a space between a hard nip and a long nip, in which case the moisture content of a web may also be in the same category of 5- 6% upstream of the moistening apparatus.
  • Figs. 1-3 illustrate schematically optional pre-calendering configurations.
  • reference numeral 1 is used to indicate a long nip, consisting of a thermo roll 6 and a long-nip roll, e.g. a shoe roll 7.
  • the shoe roll 7 can also be replaced by a belt calender assembly, comprising a normal thermo roll for soft calender, a belt run, and a counter roll which can be either a hard or soft roll.
  • Reference numeral 2 indicates a hard nip, which is formed by a metal roll 4, which is preferably a thermo roll, and by its counter roll 5.
  • the downstream end of a drying section is shown with reference numeral 3 and comprises drying cylinders 20, just a few of which are shown.
  • a moistening device 8 for the surface of a board web is positioned to enable application of water to the surface of the metal roll 4 of the nip 2.
  • the moistening device 8 can be constituted for example by a water box or the application bar of a film transfer coater.
  • the water can also be applied to the surface of the counter roll 5 or to the surface of both rolls by an appropriate arrangement of the moistening device or devices.
  • the web is dried in the drying section 3 to a moisture content of about 1-2%.
  • a moistening device 9 for the surface of a board web which can be for example a VIB water moistening apparatus, is positioned in a drying section between two cylinders 20a and 20a, which are the final cylinders prior to the hard nip 2.
  • Fig. 3 illustrates one option, employing a moistening device 10 for the surface of a board web, which can be identical to the surface moistening device 9.
  • the moistening device is located in a section extending between the hard nip 2 and the long nip 1.
  • the web can have a moisture content within the range of 5-6% upstream of the moistening device 9 or 10, respectively.

Landscapes

  • Paper (AREA)
  • Replacement Of Web Rolls (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

L'invention concerne un procédé de précalandrage d'une bande de carton. Le procédé consiste à soumettre la bande de carton (W) à un processus de précalandrage à travers au moins une ligne de contact (2) dure formée par un rouleau métallique (4) et son rouleau opposé (5), et à travers au moins une longue ligne de contact (1) formée par un rouleau thermique (6) et par un rouleau à longue ligne de contact (7) ou par un ensemble courroie à longue ligne de contact. Le procédé consiste à humidifier la surface de la bande de carton (W) avec de l'eau avant de la passer à travers la ligne de contact (2) dure.
PCT/FI2002/000907 2001-12-12 2002-11-15 Procede de precalandrage d'une bande de carton WO2003050351A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP02777393A EP1454013B1 (fr) 2001-12-12 2002-11-15 Procede de precalandrage d'une bande de carton
DE60219200T DE60219200T2 (de) 2001-12-12 2002-11-15 Verfahren zur vorkalandrierung einer pappenbahn
US10/497,344 US7326319B2 (en) 2001-12-12 2002-11-15 Method of pre-calendering a board web
AU2002338998A AU2002338998A1 (en) 2001-12-12 2002-11-15 Method for pre-calendering a board web

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20012445A FI110883B (fi) 2001-12-12 2001-12-12 Menetelmä kartonkirainan esikalanteroimiseksi
FI20012445 2001-12-12

Publications (1)

Publication Number Publication Date
WO2003050351A1 true WO2003050351A1 (fr) 2003-06-19

Family

ID=8562464

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2002/000907 WO2003050351A1 (fr) 2001-12-12 2002-11-15 Procede de precalandrage d'une bande de carton

Country Status (8)

Country Link
US (1) US7326319B2 (fr)
EP (1) EP1454013B1 (fr)
CN (1) CN1281815C (fr)
AT (1) ATE358211T1 (fr)
AU (1) AU2002338998A1 (fr)
DE (1) DE60219200T2 (fr)
FI (1) FI110883B (fr)
WO (1) WO2003050351A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103205911A (zh) * 2012-01-12 2013-07-17 浙江瀚森应用材料有限公司 镀铝纸用滚烫整平机

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5137678A (en) * 1990-04-09 1992-08-11 Sulzer Escher Wyss Gmbh Method for calendering a paper or cardboard web coated at both sides
DE19545408A1 (de) * 1995-12-06 1997-06-12 Voith Sulzer Papiermasch Gmbh Verfahren zur Oberflächenveredelung einer Kartonbahn
WO2001083883A1 (fr) * 2000-04-18 2001-11-08 Metso Paper, Inc. Procede de calandrage d'une bande de carton

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI104745B (fi) * 1998-06-25 2000-03-31 Valmet Corp Menetelmä ja sovitelma paperin ja kartongin kalanteroimiseksi
US6287424B1 (en) * 1998-09-22 2001-09-11 International Paper Company Method for finishing paperboard to achieve improved smoothness
US6190500B1 (en) * 1998-10-02 2001-02-20 International Paper Company Multilayer linerboard having improved printing properties and related method of manufacture
US6485611B2 (en) 2000-02-25 2002-11-26 Westvaco Corporation Method for smoothening a paper web before coating
FI115405B (fi) 2000-06-20 2005-04-29 Metso Paper Inc Kalanterointimenetelmä erityisesti esikalanterointia varten ja paperin käsittelylinja

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5137678A (en) * 1990-04-09 1992-08-11 Sulzer Escher Wyss Gmbh Method for calendering a paper or cardboard web coated at both sides
DE19545408A1 (de) * 1995-12-06 1997-06-12 Voith Sulzer Papiermasch Gmbh Verfahren zur Oberflächenveredelung einer Kartonbahn
WO2001083883A1 (fr) * 2000-04-18 2001-11-08 Metso Paper, Inc. Procede de calandrage d'une bande de carton

Also Published As

Publication number Publication date
ATE358211T1 (de) 2007-04-15
EP1454013A1 (fr) 2004-09-08
EP1454013B1 (fr) 2007-03-28
FI110883B (fi) 2003-04-15
DE60219200T2 (de) 2008-01-24
CN1281815C (zh) 2006-10-25
US20050077651A1 (en) 2005-04-14
FI20012445A0 (fi) 2001-12-12
CN1592807A (zh) 2005-03-09
US7326319B2 (en) 2008-02-05
DE60219200D1 (de) 2007-05-10
AU2002338998A1 (en) 2003-06-23

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